Ensure a Java class is immutable.
Lead Backend Developer Interview Questions
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Why is a String immutable?
Theory: Data structures (how does hashmap work)? Keywords in Java, GC, Threads, SOLID principles, design patterns
situation reaction andd aptitude and mostly about java
DSA and puzzles
How do I describe myself?
Implement Java algorithm to check for anagrams Implement a singleton Implement Unit tests Questions about Java language and concurrency. Generic questions about Software Design, TDD, design patterns.
a projece you designed scalable rest api
1st technical interview: OOP question. 2nd technical interview: - From an array of numbers, get all the zeros to the end of the array. - From an array of numbers, find all triplets that sum to zero. - Three more logical questions.
I dont really remember what were the questions.
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